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XTRONICS the Monthly Technical Magazine UNDER THE AEGIS OF VEDA.... XTRONICS The Monthly Technical Magazine.. VEDA Department of E C E SRI VASAVI ENGINEERING COLLEGE Pedatadepalli, Tadepalligudem Mail your articles to: [email protected] Issue No-I July 2015 Scientist of the MONTH Solutions John Bardeen Riddles May 23, 1908 1. Are you asleep? (or dead). Born Madison, Wisconsin, U.S. 2. Footsteps. January 30, 1991 (aged 82) 3. wheat Died Boston, Massachusetts, U.S. heat Residence United States eat Nationality American tea 4. She took a photo of him and developed it in the dark Fields Physics Bell Telephone Laboratories room. Institutions University of Illinois 5. The horse's name is Friday University of Wisconsin–Madison Alma mater Princeton University Doctoral advisor Eugene Wigner John Robert Schrieffer Doctoral students Nick Holonyak Aptitude Transistor Known for BCS theory 1. D Superconductivity Nobel Prize in Physics (1956) 2. B Notable awards Nobel Prize in Physics (1972) 3. C Spouse Jane (1907–1997) Bardeen was also an important adviser to Xerox 4. B Corporation. Though quiet by nature, he took the uncharacteristic step of urging Xerox executives to keep their California research center, Xerox PARC, afloat when the parent company was suspicious that its research center would amount to little. M Jhansi Rani, 4th ECE-A Company profile Hitachi Type Public kabushikigaisha ("stock company") Traded as TYO: 6501 Solutions Industry Conglomerate Puzzles Founded 1910 in Hitachi, Ibaraki, Japan Founder(s) NamiheiOdaira Headquarters Chiyoda, Tokyo, Japan 1. 6 Area served Worldwide 2. 98 Key people • Takashi Kawamura (Chairman) 3. 888+88+8+8+8 • Hiroaki Nakanishi (President) Products 4. GREAT JOB YOU GOT IT • Electronics • Industrial machinery 5. Letter ‘e’ • Telecommunications equipment 6. MINIMUM • Power plants • Information systems 7. TUESDAY • Automotive components • Materials 8. Men-5, children-10, women-20 • Construction equipment 9. 16 years Services • Consulting 10. 27 • Financial services Revenue 2012: ¥9.665 trillion[1] Website www.hitachi.com A Mounika Sri Harini, 3rd ECE-C MATHS TRICKS: Technical Zone Automating oscilloscopes: how to save time and make better measurements I. Multiplication of 11 with any number of 3 digits. (You can't use this rule for other numbers) Consider the following examples 1. 352*11 = 3---(3+5)---(5+2)---2 = 3872 Means insert the sum of first and second digits, then sum of second and third digits between the two terminal digits of the number 2. 213*11 = 2---(2+1)---(1+3)---3 = 2343 Oscilloscope measurement automation has become imperative for timely and accurate debug and validation. In II. Square of a 2 digit number ending with 5 (You can't use many cases, the number and complexity of tests demanded by a technology standard or application prohibit any this rule for other numbers) attempt at manual measurements. For example, the Consider the following example Display Port compliance tests require measurements! An automated oscilloscope can complete these measurements in a few hours, where manual measurement will require 1.35^2 = 3*(3+1) ---25 = 1225 multiple man days. 2.95^2 = 9*(9+1) ---25 = 9025 The benefits of automating commonplace and mission critical oscilloscope measurements are compelling. Department of E C E Excellent Factronics • Save time. An automated measurement system will make the same measurements faster, so you get test results • 111,111,111 x 111,111,111 = sooner, shorten test cycles and get to market faster. 12,345,678,987,654,321 • Save test and engineering resources. Let your scope do •TYPEWRITER is the longest word that can be made the work, freeing test and engineering resources for other usingthe letters only on one row of the keyboard. challenges. • Make better measurements. Remove user error and get •Wearing headphones for just an hour will increase the better greater measurement consistency. bacteria in your ear By 700 times. The benefits of automation are compelling, but the •RHTHYM is a six letter word which has no vowel. myriad options, programming expertise and upfront •The longest regularly formed English word is investment are often difficult barriers to overcome Praetertranssubstantiationalistically which contains 37 Automation options letters. Starting with a simplified view, oscilloscope automation can be divided into two primary categories, •Octopus have three hearts. based on the choice for the centre of automation: external •250 people have fallen off the Leaning Tower of Pisa. controller based; or oscilloscope based automation •The word "queue" is the only word in the English The difference between these two set ups is language that is still pronounced the same way when the illustrated in Fig 1. External controller based automation is last four letters are removed. the traditional set up, where a central computer controls •"Almost" is the longest word in the English language with all instruments in the automated measurement all the letters in alphabetical order. environment. Here, the scope is just another instrument and measurements are made based on the instructions •More people are killed each year from bees than from issued by the central controller. There are many choices snakes. available for automating oscilloscopes in this way. •It is impossible to sneeze with your eyes open The Common choices range from programming languages such typewriter was invented by Hungarian immigrant as C/C++/C# and Python, graphical programming ‘QwertYuiop’, who left his "signature" on the keyboard. environments like National Instrument's LabVIEW and •Men's shirts have the buttons on the right, but women's Agilent's VEE, and The MathWork's MATLAB. shirts have the buttons on the left . B Keerthi, 2nd ECE-A N Padma Sree Sharanya,4th ECE-B • Human hair and fingernails continue to grow after N.SPANDANA Aptitude A CELL JAMMER A cell jammer, or cell phone blocker, is an invention that interferes with the radio waves used by cell phones. 1.3 pumps, working 8 hours a day, can empty a tank in 2 This interference will block cell phone calls because days. How many hours a day must 4 pumps work to it disrupts the transmission between a cell phone and a empty the tank in 1 day? service network's cellular towers. A.9 B.10 C.11 D.12 A "jammed" phone can't connect and will simply indicate no service to the user. How It Works 2.Running at the same constant rate, 6 identical machines Get a 9-volt battery and a quarter. Find an AM/FM radio can produce a total of 270 bottles per minute. At this rate, and adjust the tuning dial until you get only static. how many bottles could 10 such machines produce in 4 While holding the battery close to the antenna, tap your minutes? quarter across the two terminals. You will hear the tapping A.648 B.1800 C.2700 D.10800 on the radio. The battery/quarter is actually a wireless transmitter. It's 3.A fort had provision of food for 150 men for 45 days. not very powerful and it can't block your radio reception but if it was more powerful you could interfere with radio After 10 days, 25 men left the fort. The number of days for waves over a wider range. That's how a cell phone signal which the remaining food will last, is: blocker works. A.29 1B.37 1 C. 42 D.54 The physicist James Maxwell predicted the existence of 5 4 radio waves in the 1860's, and in 1886, the physicist Heinrich Hertz demonstrated that rapid variations of 4.39 persons can repair a road in 12 days, working 5 hours electric current would project radio waves through space. a day. In how many days will 30 persons, working 6 hours It was this discovery that eventually led to numerous wireless communication inventions (radio, television, a day, complete the work? remote controls, satellites, cell phones etc.) A.10 B.13 C.14 D.15 These devices work within specific frequencies which are regulated by governments. Afrequency is the number of waves that pass through a given point per second (cycles per second). M Rohitha, 2nd ECE-C RIDDLES 1. What question can you never honestly answer yes to? 2. The more you take, the more you leave behind. It was this discovery that eventually led to 3.I am a word of 5 letters and people eat me. If you remove numerous wireless communication inventions (radio, the first letter I become a form of energy. Remove the television, remote controls, satellites, cell phones etc.) first two and I'm needed to live. Scramble the last 3 and These devices work within specific frequencies which are you can drink me. What am I? regulated by governments. A frequency is the number of waves that pass through a given point per second (cycles per second). 4. A woman shoots her husband, then holds him under These cycles are called Hertz (Hz) named after water for five minutes. Finally, she hangs him. Five Hertz. If a device has a frequency of 100 Hz, it means that minutes later they enjoy a wonderful dinner together. 100 waves are passing through a given point in one How can this be? second. Radio wave frequencies range as low as 3 Hz to as 5. A cowboy rides into town on Friday, stays for three days high as 1 Gigahertz. and leaves on Friday. How did he do it? Aircraft communicate in frequencies between 30 to 300 Mhz. Submarines communicate in frequencies between 3 to 30 Hz. K Aruna, 2nd ECE-B K Yaswitha Ramya, 3rd ECE-B Puzzles Digital pen. 1. If two painters can complete two rooms in two A digital pen is an input device which captures the hours, how many painters would it take to do 18 rooms in handwriting or brush strokes of a user, converts 6 hours? handwritten analog information created using "pen and 2.2+3=8 paper" into digital data, enabling the data to be utilized in 3+7=27 various applications.
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